pair,contact1,contact2,flow1,flow2 1u2m_A_,4,57,1,1 1u2m_A_,4,58,1,1 1u2m_A_,6,58,1,1 1u2m_A_,6,60,1,1 1u2m_A_,7,73,1,1 1u2m_A_,7,75,1,1 1u2m_A_,8,60,1,1 1u2m_A_,8,62,1,1 1u2m_A_,9,11,1,1 1u2m_A_,9,12,1,1 1u2m_A_,9,76,1,1 1u2m_A_,10,14,1,1 1u2m_A_,11,15,1,1 1u2m_A_,12,16,1,1 1u2m_A_,13,17,1,1 1u2m_A_,14,18,1,1 1u2m_A_,15,19,1,1 1u2m_A_,16,20,1,1 1u2m_A_,17,20,1,1 1u2m_A_,17,22,1,1 1u2m_A_,18,21,1,1 1u2m_A_,21,25,1,1 1u2m_A_,24,27,1,1 1u2m_A_,29,33,1,1 1u2m_A_,31,35,1,1 1u2m_A_,33,37,1,1 1u2m_A_,34,38,1,1 1u2m_A_,35,39,1,1 1u2m_A_,36,39,1,1 1u2m_A_,36,40,1,1 1u2m_A_,37,41,1,1 1u2m_A_,38,42,1,1 1u2m_A_,39,43,1,1 1u2m_A_,40,44,1,1 1u2m_A_,41,45,1,1 1u2m_A_,42,46,1,1 1u2m_A_,43,47,1,1 1u2m_A_,44,48,1,1 1u2m_A_,45,49,1,1 1u2m_A_,46,50,1,1 1u2m_A_,47,51,1,1 1u2m_A_,48,52,1,1 1u2m_A_,49,53,1,1 1u2m_A_,50,54,1,1 1u2m_A_,51,56,1,1 1u2m_A_,52,55,1,1 1u2m_A_,54,73,1,1 1u2m_A_,54,78,1,1 1u2m_A_,61,63,1,1 1u2m_A_,61,64,1,1 1u2m_A_,62,65,1,1 1u2m_A_,69,71,1,1 1u2m_A_,69,72,1,1 1u2m_A_,73,78,1,1 1u2m_A_,74,76,1,1 1u2m_A_,75,79,1,1 1u2m_A_,76,80,1,1 1u2m_A_,77,81,1,1 1u2m_A_,78,82,1,1 1u2m_A_,79,82,1,1 1u2m_A_,79,83,1,1 1u2m_A_,80,83,1,1 1u2m_A_,82,84,1,1